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Chinese Academy of Sciences Institutional Repositories Grid
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长春光学精密机械与物... [1]
高能物理研究所 [1]
西安光学精密机械研究... [1]
近代物理研究所 [1]
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期刊论文 [3]
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The Measurement of the Surface Dose in Regular and Small Radiation Therapy Fields Using Cherenkov Imaging
期刊论文
OAI收割
TECHNOLOGY IN CANCER RESEARCH & TREATMENT, 2022, 卷号: 21
作者:
Li, Yi
;
Liu, HongJun
;
Huang, Nan
;
Wang, Zhaolu
;
Zhang, Chunmin
  |  
收藏
  |  
浏览/下载:40/0
  |  
提交时间:2022/03/11
Radiotherapy
quality assurance
Cherenkov imaging
surface dose
output factor
profile
Co-transport of Pb(II) and oxygen-content-controllable graphene oxide from electron-beam-irradiated graphite in saturated porous media
期刊论文
OAI收割
JOURNAL OF HAZARDOUS MATERIALS, 2019, 卷号: 375, 页码: 297-304
作者:
Jiang, Yanji
;
Yin, Xianqiang
;
Guan, Duo
;
Jing, Tao
;
Sun, Huimin
  |  
收藏
  |  
浏览/下载:67/0
  |  
提交时间:2019/11/10
Radiation dose
Surface oxygen content
Graphene oxide
Pb
Transport
Analysis of surface absorbed dose in X-ray grating interferometry
期刊论文
OAI收割
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2014, 2014, 卷号: 196, 196, 期号: SI, 页码: 85-88, 85-88
作者:
Wang, ZL
;
Wu, Z
;
Gao, K
;
Wang, DJ
;
Chen, H
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2016/04/08
X-ray imaging
Phase contrast
Grating interferometry
Surface absorbed dose
X-ray imaging
Phase contrast
Grating interferometry
Surface absorbed dose
Key techniques of laser direct writing of fine lines on the spherical surface (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China
Liang F.
;
Hu J.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
The main principles of laser direct writing (LDW) system for lines on the spherical surface (SS) are discussed. It is pointed out that line profile is determined by the exposure dose distribution
which lies on the light intensity distribution of focus plane and the scanning speed. To improve the quality of line profile on the SS
several key techniques as follows are introduced. Firstly
the unique system configuration
four axes mutually intersecting at the center of the SS
is adopted
which ensures the shape of the focus be maintained circular during the writing period. Secondly
an automatic focus system (AFS) with the function of automatic focus in a certain range is introduced. Thirdly
to guarantee the linear velocity to accord with the exposure character of the photoresist all the time
an efficient arithmetic that controls motors run at appropriate angular velocity in different latitude is developed. Finally
to achieve a stable and well-behaved system so as to compensate the velocity instability resulting from unavoidable errors of mechanical and electronics factor
a powerful programmable multi-axis controller (PMAC) is utilized as the kernel element of the servocontrol system
and the curves of step response and parabolic response achieved by feedforward and PID loop tuning indicate that the location precision and velocity stability have reached a high level. The experimental results of LDW of lines on the SS work piece with a diameter 30 mm and a radius equal to 100 mm are given. The section analysis of the lines on the photoresist by the atomic force microscope (AFM) after exposure and development is performed. The results show that line width is about 3.0 m
and the steep sides of the lines are parallel to each other.